Envelop-machine.



V J. WES TY. I ENVELOP MACHINE. Arnmouxofl rinnnjunn 2g. 1902.

PATENTEDVJULYM, 1908.

9 SHEETS-SHEET 5.

No. 893,042. PATENTEDJULYM, 1908 Y J. WEST.

ENVELOPUMAGHINB, APPLIUATION I'ILED JUNB 28, 1902;

'PATBNTED JULY 14, 1908..

9 SHEETEk-SH'EET a.

J WEST. ENVELOP MACHINE. APPLIGATION FILED JUNE 2a. 1902.

No. 893,042; L

I I PATENTED JULY14, 1908.

J. was T.- w

I BNLVELOP MACHINE. APPLICATION FILED JUNE 28. 19 02.

9 SHEBTS-SHEET 9L fijeififtltri er-Arne 31mins west or 1mm man: newYORK, ASSIGNOR, BY nnsns ASSIGNMENIS, or or n-niirr To spurs. rrrrucsI-IXYICLUIE COMPANY, on ST. LOUIS, MISSOURI, A CORPORATION STATESENVELOPE COMPANY, OF SPRING- OF MAINE.

, ENvELor-MAoHINE.

Application filed June 28,

To all whom it may concern:

Be it known that I, JAMES Wns'r, of Brooklyn, in the county of Kings andin the State of New York, have invented a certain new and useful l'mrovement in Envelop Machines; and I r o hereby declare that thefollo\\'ing is a full, clear, and exact description thereof, referencebeing had to the 'accorn panying drawings, in which- Figures 1 to 4,inclusive, are views illustrating the steps followed by my machine inmaking one form of safety envelop; 5 is a sideelevation. ofan envelopmachine embodying my invention; Fig. 6 is a rear view of the machine,the belt conveyer and flap-folding parts bein removed; Fig. 7 is asimilar view to that of ig. 1, taken from the opposite side, such viewbeing on a largerscale than said figure, and parts at the both ends ofthe machine being broken away; Fig. 8 is a plan view of the rear portionof the machine, the upper lap of the u per belt being omitted; Fig. 9 isa sectiona view of the central portion of the machine taken on the line99 of Fig. 6; Fig. 10 is a diagrammatic. view of the ch ef operatingparts of the machine; Fig. 11 is" sectional view of the corn. veyertaken on the line 1111 of Fig. 7; Fig.

.12 1s a partial sectional view of the conveyor taken on the line12-'12.of Fig. 8 Fig. 13 is a sectional view of the conveyor andcreasingv rolls taken on the line 1 313' of Fig. 8; Fig. 14 is a top lanview of the glue an and lue transfer r0 1, and their attache parts; ig.15 is a sectional view of the glue ap lying de-' vices; Fig. 16 is 'aside elevation of the rolls carrying the glue applyingtype bar; Fig. 17is an elevation of the cutting cylinder; and Figs. 18 and 19 are,respectively, views of a blank and a completed envelop of another formwhich my machine is adapted to make.

the making of widely different forms of en- The object of my inventionhas been to provide a machine for making envelope which shall have,among others, the advantages of heirg simple; of being effective. andcertain. in its operation; of being readily adapted to velops, andespecially of being capable of maklng such envelope from a contlnuousstrip of paper, and. to such ends, my invention consists in the envelopmachine, hereinafter; 'SPCGlfiBd'. .1

Specification of Letters Patent.

. Patented July 14, 1908. 1902. Serial No. 113,652.

The machine which I have chosen for illustration is fitted to make theenvelop A shown in Figs. 1 mi. Such envelop is formed from a blank,illustrated in Fig. 1, such blank consisting of a striphaving parallelsides, the central portion of the strip being wider than its ends, andthe edges of such wider portions being connected with the said ends byoblique edges. In forming the envelop one of the ends a is first turnedover upon the body The oppositeend a is then turned over and secured tothe first end, as illustrated in Fig. 3. The wider portion of the blankconstitutes beside the body, a narrow flap a and a Wider flap a. overupon the ends a and a andis secured thereto, thus closing the bottom-ofthe envelop. The wider or upper flap a is provided with glue or otheradhesive material, and is then turned over, but is not secured to theends a and o The flap a is the-flap which is sealed by the user. inclosing the envelop.

In carrying my invention into practice, I provide a frame whichpreferably consists of parallel horizontal beams B, which are suitablysupported, as by legs I) "and hpon such beams are side frames 6 in theform of a Greek cross, the side frame C being connected at the top byacross bar '0.

the center of the side frames (7, and upon one end ,of such drivingshaft are the usual fast Means are pro-' vided upon the beams B tosupport a roll of paper D. ,A driving shaft E is journaled at portionof'the blank, as illustrated in Fig. 2.

The narrow fiap'is turned and loose pulleys, while upon the other end aneath the shaft G is a shaft l'l having fixed thereon a pinion h whichis pinion F by an idler l. the shaft H, a shaft carrying a guide rollerK is journalcd. Upon the shaft H the cutting cylinder 1, is mounted. hasaperiphery whose formwhen developed is preferably that of the blank fromwhiohthe envelop is to be made. The cutting cylinder, as illustrated inFigs. '6 and 17 'is preferably made in three parts. There is a bodywhich is fixed upon the shaft and which has portions Z of smallerdiameter separated by a geared to the Such cylinder In the rear of acentral portion Z of larger diameter. Sleeve sections Z are mounted uponthe portions Z of sm aller diameter and are secured thereto as bysetscrews. The portion Z is preferably of the same diameter as theperipheries of the portions Z The outer edges of the sleeve sections aremade of the shape which it is desired to give the edges of the blanks,and may be varied, as desired, according to the envelop which is to bemade. The sleeve sections are preferably made of hardened steel, and theouter edges are preferably made sharp, the surfaces at such edgespreferably .meeting at a right angle, although such edges and angle canbe varied, as desired, or as circumstances'may require. A rod 1 issecured in the frame, parallel and near to the rear face of the cuttingcylinder,

and suchrod preferably has a plate Z secured upon its under side. Springrodsl are secured to the frame, extend under and bear upon the plate 1*,and yieldingly rest against the edges of the cutting cylinder. Thetension of the said rods is upward and toward each other, so. that theyconstantly touch the cutting edges of the cutting cylinder, and stripofi any cuttings that are formed.

A bar M extends across the frame beneath the beams B, and threaded boltsN are mounted vertically on the said bar, as by nutsengaging thethreaded portions of the bolts upon opposite sides of the said bar.

The said bolts are preferably forked at their upper ends, andcylindrical rods or shafts O are pivoted in the said forks, as by pinspassing through the said forks and through eyes,

rods. The said butting-rolls are preferably of hardened-steel, and areheld against the edges of the cutting cylinder as by springs P that aresupported at their'upper ends upon hooks fastened in the top cross-barc, and

that support the rods O by rings 0 secured to the lower ends of the saidsprings and en- I gaging notches on the under sides of the rods nuts onthe bolts N.

or-r-i'The cutting rolls stand at an angle to thelvperiphery of thecuttingcylinder, and

such-angle may be adjusted by means of the The angle at which thecutting rolls stand tov the periphery of the cutting cylinder can bevaried, as desired, from a-very acute angle to or beyond alight an le. 1pen the shaft G, the glue applying devices are mounted, such devices, inthe nstance chosen for illustration, comprising disks Q which may becircular or may be higher in those portions Where it is desired to applythe glue. Between the said disks Q -1s, as shown in Fi s 6, 15 and 16, acylinder Rwh-ich of sma er diameter than the disks Q, and which hassecured to it, as by dowtailing, a type-bar S which extends parallelwith the shaft F, and whose outer faee is flush with the peripheries ofthe disks (Q,

Glue is supplied to the disks Q and the bar S 11 are connected to theframe and to the bar U, and tend to draw the glue pan toward the glueapplying devices, the movement in such direction being limited by screws11: that are threaded in the said arms A scraper bar 11/ rests u3on theupper edges of the glue pan forwar of the glue-transferring TOllGT-T,and such bar is held down upon the said edges by leaf-springs u that arepivoted upon lugs formed on the glue pan, The said springs are bent atan angle to the edges of the glue pran, so that they tend to force thebar away om the glue applying roller. Thumb screws u regulate thedistance at which the scraper bar stands away from the glue transferringroller under the action of the said springs. The scraper bar can bereadily removed by swinging the springs from over the said bar andlifting the bar from behind the screws u. The bar can be instantlyreplaced in-adjusted position, since it is not necessary to turn thescrews u in order to remove it. The glue pan and all its attached partscan also be readily removed by disengagingthe springs a from the bar U;and, as this can be done without turning the screws u the glue pan canbe quickly replaced to operative and adjusted position by simply placingthe bar U upon its guides and reengaging the springs u A draw-foldingroller V is mounted upon the driving shaft E. The said roller isprovided with shafts v and '0, respectively.

which are mounted in cylindrical bearings formed near the periphery ofthe said roller and parallel to the axis of the same. folding blades vand o are mounted upon the shafts v and 1), respectively, the saidblades occupying slots opening from the bearings of the said shafts tothe periphery of the roller. The shafts 'v and n. are each provided uponone end with an arm o and c respectively, which, as shown in Fig. 10,are engaged by springs 0*, the opposite ends of which are secured topins in the end of the roller. The shafts are thus normally turned toress the draw-foldin blades against one wall of the said slots, sue 1wall being, preferably, the rearward wall when the blade in its travelis above the drivin shaft. Upon the Draw re erred-"to. are 'tappets'o'andlv, respec- -seaoe a tively, which are ada ted to engage cams o andv respective y, the latter being formed upon a sleeve or partial sleeveW which is supported on a side frame C and extends along the under sideoffthe driving shaft E. The said cams are formed at different pointsalong the said sleeve, and .the

'f- .said tappets are correspondingly placed, so

that eac tappet enga es-its own cam with- 1 out interference from t eother. The action of the said-camsis to turn the shafts v and '0 "3,against thes'tress' of the springs attached thereto, and thus to movethe draw-folding.

that its free endnorma ystands away from in the forwardly extending'armsof the side fra'rnes, which shaftis provided witha inion, 90 thatengages the pinion F on the riv- ,ing shaft. The tucker roll is providedwith 1 tucker blades :0 which serve to tuck a fold of paper back of thedraw-folding blades when the latter are moved away from the rear wallsof their respective slots. A shaft Z is mounted in the upper arms of theside frames C, and is 'provided with a pinion 2 which engages the pinionu on the driving shaft. A roller 2' is mounte uponthe shaft Z, and aknife A" is seated in a preferably radial slot in the said roller. Theroller V is provided with a groove o that is adapted to receive ,theedge 'of the said knife. The

knife A is preferably serrated. .If desired. a

40 second knife can be mounted in the rollerV to cooperate with theknife A, and, such" knife can be yieldinglyniounted so that it can tiltin co-actingwith theknife A; A rod B extends between the side framesparallel to but separatedfrom the 1' r, rear portion of the peripheryoftln draw folding .roller. '3 p A shaft C is ournaled in bars 0 thatare ad justably secured to the'dn'ner faces of the rear a'rjms oftheside frames, as by screws assing through slots in thefsaid arms and intothe side frames.- A folding blade or "plate is secured to the saidshaft, and is normally held downward by a spring .0 shown in Fig. 8,that is secured to the frame and to an arm on the said shaft. The shaftis rocked and the plate is raised by the action on an arm c 's0curod tothesaid shaft of a cam c that is secured to the inner endof a shortshaft journalcd in thea'djacent side frame.

the outer end of the said shaft beingprovided with :1 pinion c thatmeshes with the pinion on' the driving shaft.

r A frame consisting of twoside bars D that are connected by a series ofshafts 1s mounted at the rear of and between the side frames The'bars Dare supported by bars (1 that oxtend down to and are secured to tholwums B as by bolts "passing through slots in the said bars.

connecting the bars D. The forward and rearward rollers of the saidseries are flanged or grooved to prevent lateral movement of the saidbelt. The belt (1 runs but a little below the shaft 0 and extends nearthe rear face of the draw folding roller V. A series of bearing bracketsd extends upward from the bars D ,and in the said brackets are mounted aseries of rolls J, the said brackets being slotted to receive the endsof the shafts of the said rolls, so that such rolls can rise and fall. Abeltd extends over and under the said upper series of rolls and ispressed by the said rolls a ainst the belt d at oints over the rolls 0the lower series. T e belt d is at .least as narrow as the distancebetween the top and bottom fla s a ando of the envelo while the belt dis wider than the. belt The rear rolls of thetwo series u on which thebelts are mounted are geare together, and the lower of suchrolls ismounted upon a shaft d"that is provided with a bevel pinion d, whichpinion engages a bevel pinion upon a shaft (i the latter receivingmotion by the intermeshing of a bevel pinion upon its forward end with asimilar pinion upon the shaft H of thecutter'cylinder. The shaft of thesecond roll from the forward end of the upper series of rolls isprovidedwith scoring disks d which engage scoring rdlls d upon the shaftlmmediately below it. Such sec- .ond roll is provided with anenlargement,

preferably in the form of a rubber band (1 which is of the samethicknessas thebelt (1, and is adjacent to the portion of such roll which engagessaid belt, sothat the portion of the envelop which'will be covered bysealing flap is held firmly during the scoring operation. At the rear ofsuch second roll, upon a plate E which is supported upon the bars D isadeflector F, which is provided'with a warped surface for the purpose ofraising the sealing flap ready to be folded over upon the back of theenvelop; A'similar deflector G is mounted u on a plate H on the oppositeside of the be t dfor raising the bottom flap a of the enveloppreparatory to folding it down and sealing it. Folding plates 1 and K,respectively, are secured upon the plates 1 E and H to the rear of thedeflectors F and G to gradually fold down the top and bottom flaps ofthe envelop. An upper roller L is provided with a band M similar to theband d for the purpose. of pressing the bottom A belt (1 passes over andunder a 7 series of rolls (1 ournaled upon the shafts flapof the.envelop firmly upon the flaps a andu, to secure the same'thereto, andthe folding plate K is cut away to permit said roller to reach theenvelo A plate ,N se

-cured+to the plate H at t "e rear of the folding blade ,K serves tohold the bottom fla down after leaving the roller L. The fol ing blade Idoes not fold the sealing flap of the envelop down upon the flaps a and03, but leaves such flap standing sufficiently away from the envelop toprevent accidental sealing. The fold between the sealing flap and thefront of the envelop is sharpened to the desired extent by being passedbetween an uoper roller 0, which extends over the said fold and theflap, and a lower roller P, the said rollers oontactin only along thesaid fold, and the lower ro ler being beveled so that its face recedesfrom the face of the upper roller toward the belt (2, as shown in Fig.1 1. A horizontal conveyer belt Q passes over apulley R journaled in thebeams immediately below the exit between the belts d. and (i The pulley.R is operated intermittently by a pawl S- mounted upon a lever T,thelatter being journaled u on the shaft of the said pulley, and the pawengaging a ratchet fixed-u on the said shaft. A spring U secured to thesaid lever and to the frame tends to ,draw the upper end of the leverforward. A cam V on the shaft 11 causes the said lever to oscillaterearward, thus giving the pulley R its intermittent movement.

In the operation of the machine, as above illustrated, the paper is ledby hand over the I roller K, under the cuttin cylinder; u ward andaround the glue-app yin disks t and thence between e tucker 1'0 er X andthe draw folding roller V.. The machine is then set in motion; and, asone of thg draw-folding blades 12 comes to the level of the shaft E, itis moved away from the rear wall of its slot; and a fold isformed in thepaper and is tucked behind the draw folding b ade by one of the tuckerblades m. The paper havin thus been engaged by the draw-folding ro leris drawn forward. Preferably, neither the glue-applying disks, thetucker roller,

nor the cutter-carrying roller come in contact with the eriphery of thedraw-folding roll, so that t e feeding of the pa er is effected solelybythe draw folders and t e tucker blades. As the paper asses over thecutter cylinder, the cutter ro ls O are drawn firmly against the edgesof such cylinder by the springs P and cause the paper to be sharcplysevered along the edges of the said cylin er the springs causing saidrollers to follow the cutting edges of the cutting cylinder, and in amost effective and simple manner thus to cut the edges of the strip ofpaper to conform to the periphery of the cutting cylinder. In practice,I have found this cutfin mechanism to be exceedingly simple and efeotive and adapted .to a wide variety of forms. As the pape1\travelsupward on the rear side of the cuttingcylinder, the springs Z engagethesevered portions of the paper and deta'chthem, should thev notalready have fallen away. The tension of the said s rings toward eachother causes them to c osely follow the cutting edge of the cylinder, sothat they always act along the line of cutting, and most effectivelyseparate the severed portions from the strip'of paper.

tucker roller, a fold is formed along the line L between the end fiap aand the body of the envelop, the said fia extending forward alon theface of the (fi'aw folding cylinder. As t e said roller carries thepaper onward, theend' fla a runs overthe rod B, and when the fo d at thebase of the said flap is carried beneath the said rod by the movement ofthe draw-folding roller, the said flap is turned back upon the envelopinto the position shown in Figs. 2 and 9. As the line between the endflap a and the body of the envelop approaches the plane of the shafts ofthe draw folding and tucker rollers, the

second tucker blade 0: forms a foldnin the fold is formed. If desired,however, the

slack for the second fold can be obtained by drawing the paper forwardfrom the roll of paper and printing mechanism, instead of allowing it toslip backward fronnthe first.

draw-folder. As the draw-folding roller continues its movement, theelasticity of the paper causes the body of the envelop to stand awayfrom the draw folding cylinder and to roject into the space between thefolding blade or plate 0 and the lower .belt d. The cutter A pressesagainst the aper over the groove in the draw-folding roller and seversthe aper. As the paper is under tension, this can e done without causingthe cutter to out against an'edge or surface. The life of the cutter is,thereby, prolonged. The cutting edge of thecutter A isa toothed orserrated one, a formation'which facilitates the cutting operation, inview of the conditions under which the paper is severed, as the sharppoints or teeth readily enter the ti ht paper.

Further movement of the said ro er causes the forward end'of the body ofthe envelop to travelforward until it is enga ed between the belts d andd. At about t time, as illustrated in Fig. 10, the rearward flap a ofthe envelop is bent forward and downward by the elastic strip v untilsaid flap a is beneath the folding plate or blade 0'. The latthe scoringroll (1, 'see Fig. '13,the scores ter is then moved downward, causingthe. position to pass flap (1 to overlie the flap ain between the beltsd and d The second draw-folder now releases the envelop,,and it passesbetween the said belts. As. the"envelop passes between thescoringdisks dand and bottom flaps a and c and is firmly secured thereto by thepressure of the band M against the roller and belt beneath. The upperflap, as stated, is turned over, as shown. in Fig. 11, and the crease atits base is com-. pletely formed between the rollers O andP';

respectively, but such fla is notbrought into contact with the'bac ofthe envelop-J The envelop 'thenlpasses from between the belts d and dupon the belt Q, which, by its step-by-st'e movement,causes the envelopeto accun'iu ate in a position in which they overlie each other and arereadily, gathered into bunches. a

In Figs. 18 and 19. are respectively illustrated a blank and thecompleted envelop.

made therefrom, which are adapted to be.-

made by the above-illustrate machine. Such envelop consistsof a bodyW,end fla s end flaps overlap and are secure together. Triangular sectionsw connect the end flaps with the top and bottom' flaps, so that, whenthe blank is folded,safetycorners are formed.

The top flap are adapte of the bottom flap, so that, in sea has threeprojections w, which be o )ened, as in the ordinary envelplp. This enveo is a comphcated anddlffic t one to make y any machine with which I amfamiliar produced prior tomy machine, but.-

by means of the latter machine, such envelop 3811 be made readily as thesimpler envelop illustrated in Figs. 1 to 4'. My cutting mechanismreadily forms the sinuousline of the top flap of.

In practice, I be an exceedingly cheapand effective, one for makingenvelopsl few parts, and yet with great rapidity].

It is obvious that r dudes accurate wor =1 within) the sec ofmyinvehtio'n.

mg thus described my Invention, what Lilli 1S1,

3.. in an envelop machine; the c0mbi-na-- 'form the edges of the tofp anenvelop, means for to be pl'acedupon op osite sides ng the en-z velop,there willbe no simple seam which can.

have found my machine to I It has. comparativel.

. .es e a th i!mSlJUQtMm shown-and described which.-

'tion of-means for, feeding m means for cutting the e tion of means forfeeding astrip of material. means for cutting the edges of such strip toform the edges of the'top and bottom flaps of an envelop, means-forturning over the end flaps, means for turning over'the top andbottomflas of the envelop afte'rzsaid end" flaps have, e'en turned over.andk'means for causing the several means'to act in the order named. I

' 2. In an. envelop machine, the combination of means for feeding .astrip of material,

means for cutting the edges of such strip to form the edges of the topand bottom flaps of an envelop, means )for turning over the end flaps,means for turning over the top and bottom flaps of the envelop andmeans'for' causingthe several means to act in theorder named. f L 3. Inan'envelop machine, the combination of means for feeding a strip ofmaterial,

means for cutting the edges. of such strip to form edges of the to andbottom flaps of an envelop, means'f'or fbrming the end folds of the.envelop, means for turning over the end flaps of the envelop, means forturning over the top and bottom flaps of the envelop after said endflaps have been turned over and the order named. 1 4, In an envelopmachine, the combination of means for feedinga strip of material, meansfor cutting the edges. of such strip to rming the end olds of theenvelop, means for turning over the end flaps of the envelop, means forsubseguently, turning over the top and bottom aps of the envelop andmeans for causing the several means to act inthe order named.

f 5. In an envelop machine the combina: tion of means for feedin a stnpof material,

means for cutting the e ges of such strip to form the edges of the topand bottom flapsof an envelop, means for turning over the forward endflap of "the envelop, means for sevmeans for causing the several meansto act in and bottom fla s of ering the blank from the strip, means forturning over theremaining end flap of the envelop and means for causingthe several means to act in the order named.

6. In an envelop machine, the combination of means-for feedinga strip ofmaterial,

means forgcutting the edges'of such strip to --form the edges of the topand bottom flaps of an envelop, ;m'eans for turning over the forwardendflap ot' the envelop, means for severing thei bla'n-kfrom the strip,means for turning gover the remaining end flap of the means to .act inthe order name Q '5'" envelop, and means for causin the several 7 In anenvelop machine," the combinw a strip. of material, ges of such strip toform the edges-of the top and bottom flaps of an envelop, means for aplying adhesive mat'erial to t e strip, means or turning over the forwardend flap of the envelop, means for severing the blank from the strimeans'for turning over the remaining en .flap ofthe envelop and meansfor causin the several means to act in'the order named.

8. In an envelop machine, the combination of means for feeding a stripof material, means for cutting the edges of such strip to form the edgesof the top and bottom flaps oil an envelo means for ap lying adhesivematerial to t e strip, means or turningover the forward end flap of theenvelop, means for severing the blank from the stri means for turningover the remaining en flap of the envelop, and means for causin Ytheseveral means to act in the order named.

9-. In an envelop machine, the combination of means for feeding a' stripof material, means for cutting the ed es of such strip to f0rm the flapsof an envjop, a single mech anism for ap lying adhesive material to thestrip, means for tnrning over the end flaps of the envelop, means forturning over the flaps at the edges of the strip and means'f'or causingthe several means to act in the order named. 1 l

10. In an envelop machine, the combination of means for feeding a stripof material, means for. cutting the ed es of such strip to form theflaps of an enve lop, a single mechamsm for applying adhesive'materialto the strip, means for turningover the end flaps of the envelop, meansfor turning over the flaps at the edges of the strip, and means forcausing the several means and said mechanism to act the order name 11.In an envelop machine, the combination of means for feeding a stripoLmaterial, means for cutting the edges of such strip to 40 I form theedges of flaps of an envelo means for applying adhesive material to t estrip, means for turning over the forward flap, means for severing theblank from the strip, means for turning over the rear flap, means forturning over the fla s formed at the edges of the strip. and means fbrcausingthe' several means to act in the order named.

12. In an envelop machine, the eombination of means for feeding a stripof material, means for cuttin the edges ofsuch strip to form the edgesof flaps of an envelo means for applying adhesive material to t e strip,means for turning over the forward flap, means for severing theblankfrom the strip, means for turning over the/rear flap, meansforturning over the flaps formed at the edges of the strip, and means forcausing the several means to act in the order named.

13. In an envelop machine, the eombinae. tion of means for feeding astri of material, means for cutting the edges of such stripto form theedges of flaps of an envelop, a sin lemeans for applying adhesivematerial to tie strip, means for turning over the forward flap, meansforsevering the blank from the strip, means for turning over the rearmaterial to said strip the strip with the along the lines where f saidstripduring its movement, a draw folding roller having two or p, meansfor turning over the iiaps formed at the edges of the strip and i'neansfor causing the several means to act in the order namcdJo 14. In anenvelop machine, the combimr tion of means for feeding a strip ofmrderial, means for cutting the edges of such strip to form the edges offlaps of an envelop, a single means for applying adhesive material tothe T5 strip, means for turning over the forward flap, means forsevering the blank from the strip, means for turning over the rear flap,means for turning over the flaps formed at the edges of the strip, andmeans for causing 0 the several means to act in the order named. 15. Inan envelop machine, the combine.- tion of means for feeding a strip ofmaterial, means for applying adhesive material tobut one side of suchstrip, means for cuttin a blank from such strip, and means for folding g5 such blank to form the envelop.

16. In an envelop machine. the combina tion with means for feeding astrip of material, a single means for applying adhesive material to butone side of said strip, mums for cutting 'a blank from said strip, andmeans for folding said blank to form an envelop.

17. In an envelop machine, the combine tion of means for guiding a stripof material, as means for applying adl'iesive'material to buta'singlegside of such strip, and means for feeding and folding saidstrip, said means f or feedin and folding consisting of a draw foldingcy inder-having grippers thereon which engage only the side of t 1estrip opposite that having adhesive material thereon.

18. In an envelop machine, the combina tion of means for guiding a stripof material. a draw folding roller having two or more draw folders,means for applying adhesive before it reaches the roller, and means forengaging draw folding roller, said en a ing the strip onl Y f bl ds areto be formed.

19. In an envelop machine, the combination of means for moving'a stripof material to a draw folding roller, means for guiding draw foldinlast-named means 1 1 1 l 5 more draw folders, means'for applylngadhesive material to said.

strp before it reac ms the draw folding roller, an

means for engaging the'strip with said draw foldin roller alonglineswhere folds are to be formed.

-20. In an envelo machine, in combinm tion of means for guiding a stripof material,

a roller having draw folders thereon, means for engaging said strip withsaid draw fold- 123 ers, and a strip or flap secured to said draw foldinroller at a point in the rear of the last draw older and ads ted to flyup and bend over the end of the b ank which overlies said seams 21. Inan envelop machine, thecornbination of meansfor guiding a strip ofmaterial, a draw folding roller having two or-more draw folders thereon,upper and lower belts or rollers, the lower belt or roller being nearerto said draw folding roller than the upper "folding plate or blade,whereby saidflap'sare and said lower belt orroller before morecompletely folded between said'zpla'te P ng beneath said beltsorrollers. I e 22. In an envelop machina'the comblna tion of means forguiding a strip of'material,

a draw foldin roller, having two or more draw folderst ereon, upper andlower belts, or rollers, thelower belt or roller being nearer to saiddraw folding rollerithan the upper belt or roller, a folding blade orlate pivotedabove the portion ofythelower blade or plate, and means formoving sai' elt, or roller that is beyond the u tially folding the enflaps of theblankand directing said blank beneath said foldin foldingplate or blade, whereby said flaps are. more completely folded betweensaid plate, and said lower belt or roller before passing-- beneath saidbeltsor rollers, t t 23. In an envelop machine, the combinadrawpresentln an envelo tion of means forguidi'ng a strip of-material andafpplying adhesive material thereon, a o ding roller-having two ormorefdraw folders mounted thereon, means for engaging said strip withsaid draw folders, means for severing said stri at a point be 0nd orinrear of said draw fol ers, a movab e strip or flap secured to saidroller in rear of saidlast draw folder, up the folde blank is adaptedtopass, said lower belt or roller extendin-"nearerto said drawfoldingroller than sai upper belt or roller, and a folding blade or platemovable labove the extended portion of, said lower belt or roller.

24 'In an envelop machine, thefcombinae tion of upper and lowerbelts orrollers that are ada ted to receive between them an en velo t e lower ofsuch belts'or rollers ex portiono f saidlowr elt or roller with one ormore of its flaps partly folded over, and a plate or folder situatedabove said extended a portion of the lower belt or roller and pivoted atits end nearest to said upperbelt orlower belt or ro 25L 11' an envelopmachine, the combination of means for guiding a. strip of material drawfolder, which the fol lower belt or roller exten ing nearer to said drawfolding roller than said upper belt and means for turning-over the: sideflaps o the blank upon the 'emlz-jflaps thereof, sa d per one, means forparfolders mountedthereon, means for engaging said strip with said' drawfolders, means for and a adhesive material thereon, a draw fbldihgiioller having two or more draw "severing said strip at a point beyondor.in, 1 rear of ,saiddraw folders, a movable stri or flap secured tosaid rollerin rear ofsaid ast, I

ed blankis ada ted to or roller, af'olding blade or plate movable abovethe extended portion of'said lower belt. "or roller, and a stationaryrod or projection against which the forward flap-of the blank is"adapted to contact to be turned back upon ftheblank. I p

f 26. Inan envelop machine, the combina- 11 per and lower belts betweend passe? V tion of-means for forming a blank, means for "applyingadhesive material thereto, means 'for turn ng over the end flaps ofrth eblank latterfmeans consisting oftu er and lower belts'or rollers'betweenwlnc the central portion of the blank is adapted to pass, folders ordeflectors for turning over the side flaps "of the blank upon thelatter, and means for ,pressin one of said side flaps upon the blank.

' 27.. 11 an envelop machine, the combination of means for forming ablank, means for applying adhesive material thereto, means for turningover the end flaps of the blank, and means for turning over the sideflaps of the .blank' upon the endflaps thereof, said latter meansconsisting of u er and lower belts or rollers between who the centralportion oftheblank is adaptedtq pass, folders or deflectors forturningpver the side flaps of the blank upon thelatter, means for press'ing one of sand flaps upon the blank, and erand lower beltsbetween-which v the-o osite fia as P 11 an envelop machine, the'combinasee,

tion of upper and lower belts betweenwhich a blank is ada ted to bereceived, said upper belt being at east as narrow as the distancebetween the side flaps of the blank when said fla s havefibeen folded ashaft havin scoring dis s thereon tolscore the lines at t e bases ofsaid-side flaps, and a roller upon said shaft with said s'corin disksada ted to engage the ortion of 'the blank which will be covered yone ofsaid side flaps;

29. In an envelop machine, the combination of upper'and lower beltsbetween which a blank is adapted to be received,sa1d upp r belt bein atapshave been folded, ineans for folding one of said flap's, and meansfor pressing said e roller which bears east as'narrow as the distance 7between t e side flaps of the blank when said roller and ada ted to 006erate with said -fi ler to comp ete the folding of saidfla or flaps.

of rollers on oppoagainst the narrower belt having an enlargement thatis adapted to engage and bear upon thefolded flap. v

30. In an envelop machine, the combination means for defining the foldat the base of the sealin flap of an envelop,- comprising to puncturethe strip of paper, said knife bea pair of belts adapted to engagebetween them a portionof t e blank not covered by mg carried by theother of said rolls in a polsai the sealing flap, an upper cylindricalroller sition to register with the center of ada ted to bear upon theouter face of one of -recess.

sai' belts, and a lower roller that is c vlin- I In testimony that Iclaim the foregoing I drical Where it engages the portion of the l havehereunto set my hand.

blank to be folded and that is reduced in JAMES TEST of paper throughthe machine and comprising a pair of rol ers one of said rollers havinga recess in its periphery, of means for applying a tensile strain to thestrip of paper as it passes between said pair of rollers, a knifeprovided with sharp pointed teeth adapted diameter beneath the remainingportions of g the blank. 31. In an envelop machine, the combina tionwith a feeding device for feeding a strip 1 Witnesses:

EDWARD STEVENSON,

T. WM. KIENAs'r.

